Finding the Fourth Proportional to 153,503.52, 211,842.18 and 85,525.08
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Solution
The fourth proportional to 153,503.52, 211,842.18 and 85,525.08 is: 118,028.69
Step by Step Solution
- Step 1: Write the proportion equation
153,503.52 : 211,842.18 = 85,525.08 : x - Step 2: Convert to fraction form
153,503.52/211,842.18 = 85,525.08/x - Step 3: Cross multiply
153,503.52x = 211,842.18 × 85,525.08 - Step 4: Simplify right side
153,503.52x = 18,117,819,391.87 - Step 5: Solve for x
x = 18,117,819,391.87/153,503.52 - Step 6: Final answer
x = 118,028.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.